Air purifier



FIG. 1 is a top, front and right side perspective view of an airpurifier showing my new design;

FIG. 2 is a bottom, rear and left side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is an enlarged view of portion 9 in FIG. 2; and,

FIG. 10 is an enlarged view of portion 10 in FIG. 2.

The evenly-spaced broken lines in the drawings illustrate portions of anair purifier that form no part of the claimed design. The dash-dot linesshowing the enlargements in FIGS. 2, 9, and 10 form no part of theclaimed design.

CLAIM The ornamental design for an air purifier, as shown and described.